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引言地震预警系统能快速检测地震的发生并对可能来临的地面震动发出警告。目前,日本和墨西哥已经存在公共预警系统,包括美国西海岸在内的许多其他地区也在发展地震预警系统[1]。在地震预警系统的设计中,调研企业和公众主动利用预警信息的方式是一个至关重要的因素[2-5]。在2011年M9日本东北大地震期间,尽管低估了地震震级,但还是成功地发布了地震警报[6]。为了确定警报的用处,日本气象厅(JMA)进行了公开的
Introduction The earthquake early warning system can quickly detect the occurrence of earthquakes and warn of possible ground vibration. At present, public warning systems already exist in Japan and Mexico, and earthquake early warning systems are being developed in many other areas, including the west coast of the United States. [1] In the design of earthquake early warning system, it is a crucial factor for the research enterprises and the public to take the initiative to use early warning information [2-5]. During the M9 East Japan Earthquake in 2011, despite the underestimation of the earthquake magnitude, an earthquake alert was successfully issued [6]. In order to determine the usefulness of the alarm, the Japan Meteorological Agency (JMA) was made public